Sewing-machine fly-wheel.



w. GOULD. SEWING MACHINE FLY WHEEL.

APPLIOATION FILED FEB. 24, 1906.

Patented Sept. 15,1908.

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chwvvl M ATTORNEY Fly-Wheels, of which WALLACE W. GOULD, OF BRIDGEPORT,CONNECTICUT.

SEWING-MACHINE FLY-WHEEL.

Specification of Letters Patent.

Patented Sept. 15, 1908.'

Application filed February 24, 1906. Serial No. 302,690.

To all whom it may concern:

Be it known that I, WALLACE W. GO LD, a citizen of the United States,residing in the city of Bridgeport, county of Fairfield, State ofConnecticut, have invented certain new and useful Improvements inSewing-Machine the following is a specification.

My invention relates to improvements in sewing machine fly wheels, andhas for its object to provide means for preventing the throwing off ofoil and grit therefrom while in motion.

Heretofore wheels of the character described, have been of great troubleto the user and operator in that the oil used on the mechanical parts ofsaid machine would work itself along the drive shaft onto the balance orfly wheel and be thrown thereoff by centrifugal force onto the work,consequently ruining the garment or fabric operated upon.

In the following I have described in connection with the accompanyingdrawings,.

several forms of my invention, the features thereof being moreparticularly pointed out hereinafter in the claims.

In the drawings Figure 1 is a vertical sectional view illustrating thepreferred form of my invention; Fig. 2 is a vertical sectional view of amodified form of construction; Fig. 3 is another modified form ofconstruction illustrating my invention as appliedto a fly wheel made ofa plurality of parts.

Similar numerals of reference indicate similar parts throughout theseveral views.

1 indicates a balance or fly wheel as applied to a sewing machine shaft2 and adapted to be fastened thereto by set screws 3, 3.

The wheel as illustrated in Fig. 1 is made of a solid casting, the webportion 4 thereof being turned down on its outer edges forming a rim cup5 thereon. a sewing machine to be used thereon as a bal ance wheel and adrive for same, is mounted directly on the main drive shaft 2, as shownin Figs. 1 and 2 having the open side or cup side of .the wheel towardsthe bearing of the shaft and has formed on the outer portion of thecasting a groove 6 adapted to receive a driving strap 7, said outerportion having at its extreme outer end a hub bearing 8 in which setscrews 3, 3 are mounted. The wheel is preferably mounted on said driveshaft so that the hub bearing 8 is flush with The wheel as applied tothe end of the shaft, as shown in Figs. 1, 2 and 4.

Fig. 2 is a modified form of construction illustrating my invention asapplied to the balance or drive wheel of a sewing machine in which tworimmed cups may be employed, said cups comprising turned down rimportions 9 and 10 on both sides of the web 4 thereof.

Fig. 3 illustrates a modified form of my invention in which the flywheel is made of two parts, the rimmed cup portion 14 forming one partand the projecting casting 15 forming the other part, casting 15 has astrap groove 16 formed therein, and carries a bearing portion 17 inwhich set screws 18 are mounted at its outer end, the respective partsthereof being held together by means of screws 19 and 20 passing throughthe web 21 of the wheel. It is obvious that said rimmed cup may beformed on both sides of a fly Wheel, and that the oil collecting on saidfly wheel while in motion will run down the spokes or web into saidrimmed cup and be retained therein until theimotion of said fly wheel isstopped when it may be removed.

Having described my invention what I claim and desire to secure byLetters Patent of the United States is 1. A cup shaped fly wheel forsewing machines having an inwardly turned rim adapted to form a channelaround the inside the edge of the wheel, the open or cup side of thewheel being towards the bearing of the shaft and said wheel beingmounted directly on the shaft so that the oil from the shaft can spreadalong the closed side of the wheel into said rim.

2. A combined pulley and fly wheel for sewing machines comprising apulley section and an integral fly wheel section, the latter having anopen cup faced surface on the side towards the bearing of the shaft andan inwardly turned rim adapted to form a channel around the inside theedge of the wheel, the flat side of the cup being in direct contact withthe shaft so that the oil from the shaft passes along said flat side tosaid rim.

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

WALLACE W'. GOULD.

Witnesses:

LUCIEN T. WARNER, J.'ELT1NG DEYO.

